2. 职称英语
  3. Which of the following is the characteristic of free radicals?A、They are a parti

Which of the following is the characteristic of free radicals?A、They are a parti

游客2025-02-15  8
问题 Which of the following is the characteristic of free radicals?
选项 A、They are a partial cause of certain diseases.
B、They escape into the atmosphere when we breathe.
C、They are present in two vitamins.
D、They are produced by our bodies.
答案 A
解析 第二段第二句提到自由基和多种疾病有关(be implicated in diseases)，其中的implicate一词指“涉及，牵涉”，故A正确。
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